Pliers.



No. 792,962. PATENTED JUNE 20, 1905.

P. BROADBOKS.

PLIERS.

APPLICATION FILED JUNE 22.1904.

Patented June 20, 1905.

PATENT OFFICE.

PETER BROADBOOKS, OF BATAVIA, NFH/V YORK.

PLIERS.

SPECIFICATION forming part of Letters Patent No. 792,962, dated J une20, 1905.

Application filed June 22, 1904. Serial No. 213,588.

To a/ZZ whmn/ t 711,0,7/ concern,.-

Be it known that I, PETER BRoADBooKs, a citizen of the United States,residing at Batavia, county of Genesee, and State of New York, haveinvented a certain new and useful lmprovement in Pliers, of which thefollowing is a specilication.

My invention relates to a new and useful improvement in pliers, and hasfor its object to improve upon pliers in several ways, so as to give tothem greater strength and better efficiency without adding anycomplication thereto.

Some of the objects are as follows: That portion of the pliers in whichthe levers cross one another is formed circular in the ordinary vmanner, and these circular portions have the ordinary notches formed inthe sides-thereof, which notches are adapted to cross one another whenthe pliers are closed to form a wire-cutter. One of my improvementsconsists in making one of these notches wider than the other notch, andthus the same eX- actness is not required in bringing them in alinementas where the notches are the same size.

Another improvement in my invention is providing a groove formed in theoutside pivotal portion of one of the levers, which, coacting with theother jaw, forms a wire-cutter in which the wire may be cut while it isheld parallel with the pliers. By this construction I gain strength inthe jaws of the lever, as only one beveled notch is required in onelever to accomplish this result. This will leave the full strength rightwhere the greatest strength is required.

Another obje'ct of my invention is obtained by providing a set-screw tolimit the movement of the levers and to allow for both cutting-notchesto be in alinement when the levers are spread. The set-screw also servesin holding the levers together.

A further object of my invention is to attach side plates to a pliersofthis description, said side plates so attached to the levers and jaws asto provide a parallel movement and provide a shear and cutting-nipperwith but Small additional expense.

Other objects will be enumerated in the body of the specification.

With these ends in View this invention consists in the details ofconstruction and combination of elements hereinafter set forth and thenspecilically designated by the claims.

In order that those skilled in the art to which this inventionappertains may understand how to make and use the same, the constructionand operation will now be described in detail, referring to theaccompanying drawings, forming a part of this specification, in which-Figure l is an elevation of one side of my improved pliers; Fig. 2, asimilar view to Fig. 1, showing the pliers open; Fig. 3, an elevation ofthe opposite side of the pliers when closed; Fig. 4, an edge elevationof the pliers; Fig. 5, a side elevation of the pliers, showing amodilied form of construction.

A and B represent the two levers, which have formed therewith thecircular pivotal portions A and B', respectively. These pivotal portionsare cut away so as to be just half of the thickness of the levers andjaws, so that the pliers will be iiush upon each side. These pivotalportions are pivoted together by means of the rivet or screw C, and Drepresents the jaws of the pliers formed integral with the levers.

E and E are notches formed in the periphery of the pivotal portions Aland B. The notch E is formed considerably wider than the notch E', andthe cutting edge is formed upon the lower edge of the notch E, and whenthe leversare spread this cutting edge is lower than the lower edge ofthe notch E, thus producing the advantages above referred tol F is abeveled groove formed upon the outside of the pivotal portion A of thelever A. This groove commences at the surface near the center of thepivotal portion and is beveled downward to the periphery of said pivotalportion, and when the levers are spread a wire may be placed in thisgroove F, and when the levers are closed the opposite jaw will act as acutter to shear off the wire.

B2 is a groove formed in the periphery of the pivotal portion B.

G is a screw threaded through the upper portion of the lever A, the endof said screw adapted to enter the groove B2. This groove B2 is of sucha length as to limit the Opening of the pliers to bring the notches Eand F/ in proper alinement as well as the beveled groove F.

H is a plate secured to one of the jaws at the point H and H2, so as tomove with said jaw. This plate H is provided with a cutting edge H3,formed radial with the point H2. I is a plate arranged upon the sameside of the plier as the plate H and pivoted to the same jaw at thepoint H2. The pivotal portion of the plate H fits in a circular recessin the plate I, so that the plates will be flush.

The plate I is formed with a cutting edge I',

opposed to the cutting edge H3 and also extending radial from thepivotal point H2. J is a stud swiveled in the lever opposite the leverof the jaw to which the plates are attached, and the lower end of theplate I extends through the stud J and adapted to slide therein' as thelevers are opened and closed. In Fig. l I have shown the levers closedand in Fig. 2 opened. It will thus be seen that in this manner I providea side cutter on which great strength can be exerted on account of thecompound leverage thus employed. If desired, a horn or hook K may beattached to the upper end of the plate I and used as a bail-hook forpulling staples, zsc.

In Fig. 5 I have shown a modified construction in which a side plate Lis pivoted at the points L to each of the jaws, the lower end of saidplates sliding through studs M, attached tolevers opposite the jaws towhich the plates are pivoted. Thus as the levers are Opened and closedthe plates will be caused to move parallel with one another, and thusprovide a shear and cutting-nipper with but small additional expense.

Of course I do not wish to be limited to the exact construction hereshown, as slight modifications could be made without departing from thespirit of my invention.

Having thus fully described my invention, what I claim as new and usefulis- 1. In a pair of pliers Of the character described, two levers lcdtogether and pivoted, the pivotal portion of each lever being circular,plier-jaws formed with each lever upon the opposite side of the pivotalportion,a notch formed in the periphery of each circular pivotalportion, the notch in one portion being wider than the notch in theother portion, a

slot formed in the periphery of the pivotal portion of one lever, ascrew threaded through the Otherlever and entering said slot for thepurpose of limiting the spreading of the levers, as specified.

2. In a pair of pliers, two levers, each lever having a jaw formedtherewith, s aid levers crossing -one another and being pivotedtogether, the portions surrounding the pivot of each lever beingcircular, a notch provided in the periphery of each circular portion,one notch adapted to pass the other when the levers are closed, onenotch being wider than the 'notch in the other portion, the periphery ofone circular pivotal portion being provided with a slot, a set-screwthreaded through one of the levers and entering said slot, a radialgroove formed in the outside of one of the pivotal portions, said groovecommencing at the surface of the pivotal portion near the center thereofand extending at an incline into the pivotal portion toward theperiphery, the jaw formed with the opposite pivotal portion adapted tocross the outer end of said groove when the jaws are closed, as and forthe purpose specied.

3. In a pair of pliers of the character described, two levers, eachhaving a jaw formed therewith, said levers crossing one another andbeingpivoted together, a side plate pivoted to one of the jaws, a studswiveled in the lever formed with the opposite jaw, the lower end ofsaid plate passing downward through said stud and adapted to slidetherein as the jaws are opened and closed, a cutting edge formed uponthe outer edge of said plate radial with the pivotal point of said plateand jaw, a second plate secured rigidly to the same jaw as the otherplate, a cutting edge formed with said last-named plate opposed to theother cutting edge and also formed radial with the pivotal point of thefirst-named plate and jaw, as specified.

4C. In a pair of pliers of the character described, two cross-leverspivoted together, jaws formed with each lever, a side plate arrangedupon one side of the pliers, said side plate pivoted to one of the jaws,a stud swiveled in the lever formed with the opposite jaw, the lower endof said plate passing through said stud and adapted to slide therein, acutting edge formed with said plate radial with the pivotal point, aplate formed with the same jaw as the other plate is pivoted to, saidplate also provided with a cutting edge radial with the pivotal point ofthe first-named plate, and a horn or hook extending outward and curveddownward from the upper end of the lirstnamed plate, as and for thepurpose specified.

In testimony whereoi1 I have hereunto afiixed my signature in thepresence of two subscribing witnesses.

PETER BROADBOOKS.

WVitnesses:

GEORGE MACDONALD, GEORGE A. KAPELL.

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